Nathalie Kosciusko-Morizet

As a twenty-nine-year-old, Kosciusko-Morizet was elected a member of the French National Assembly in 2002, representing the department of Essonne, to the south of Paris, serving out the term for Pierre-André Wiltzer who was appointed deputy minister. She was reelected in 2007 and 2012. In parliament, she served on the Committee on Legal Affairs. In addition to her committee assignments, she was part of the French-Polish Parliamentary Friendship Group.

In the 2008 French municipal elections, Kosciusko-Morizet was elected mayor of Longjumeau (Essonne).

In the government of Prime Minister François Fillon, Kosciusko-Morizet became a state secretary in the French government responsible for the environment in 2007, serving under Minister of Ecology, Energy, Sustainable Development and the Sea Jean-Louis Borloo. Then in 2009 she became state secretary with responsibility for Forward Planning, Assessment of Public Policies and Development of the Digital Economy, before eventually succeeding Borloo as Minister for Ecology, Sustainable Development, Transport and Housing in November 2010. In this capacity, she chaired the meetings of G8 energy ministers when France held the group's rotating presidency in 2011.[4]

In 2012, Kosciusko-Morizet left her position as minister to become spokesperson for Nicolas Sarkozy during his presidential reelection campaign.

In February 2013, Kosciusko-Morizet announced she would be a candidate for the Mayor of Paris in the 2014 local elections. She faced among others Rachida Dati in the UMP primary election. The polls had Kosciusko-Morizet as a favourite to win the primary. She was endorsed by François Fillon.[5]

On 3 June 2013 Kosciusko-Morizet won UMP's primaries for the office of Mayor of Paris with 58.16% of the vote.[6]

In the Mayoral elections held on 23 March and 30 March 2014, Kosciusko-Morizet's UMP lists were defeated by the lists led by Socialist Deputy Mayor Anne Hidalgo, who was elected Mayor of Paris on 4 April 2015. The Socialist, Green and Communist parties created a coalition with 91 councillors, while the UMP and UDI-Modem parties were relegated to the opposition with 71 councillors.

After Nicolas Sarkozy's return in politics in 2014, Kosciusko-Morizet was appointed vice-president of the UMP (since 2015 The Republicans) to represent the moderate fringe of the party, while her rival Laurent Wauquiez represented the hardline part. After the 2015 regional elections, during which Wauquiez successfully ran in Auvergne-Rhône-Alpes, she was ousted by Sarkozy for criticizing his strategy and was replaced by Wauquiez.

Then, Kosciusko-Morizet announced her candidacy for the primary. Despite some difficulties, she got the sufficient number of supports to run. She finished fourth with only 2.6% of the vote, far behind Sarkozy (20.1%). She endorsed Alain Juppé for the second round.[7]

In the French legislative election of 2017, Kosciusko-Morizet stood in Paris's 2nd constituency, previously held by former prime minister François Fillon. During the campaign, she was hospitalised for a night after falling on the pavement and hitting her head when a protester threw a batch of election leaflets in her face.[8] She was defeated in the second round of the election by La République En Marche! candidate Gilles Le Gendre.[9]